piston mishap?

[Leesfer]

this is the second "oh no it won't start" post ive made... This time its much worse I'm afraid...

I let my brother drive the car and he called me up in the middle of his outing to tell me the car isn't working so I drove down and sure enough it isn't starting again. Though this time it will start for a moment and idle at nearly 0 rpms then shut down. When I opened the hood and got in there I could smell burning from between the cams, so I'm thinking pistons/sparks. Any ideas?

edit: it stays idling until you hit the gas, and when you do you hear clank from the engine

[So Cal Mark]

I'd check the timing belt alignment BEFORE trying to start the engine again. On a 2L, if the t-belt alignment is off, the aux shaft can contact the crankshaft/connecting rod and do some serious damage